SINGLE CUTTERS PRODUCTION IN WORKSHOP YINHAI -Series type of cone bits are assembly parts of Tricone bit and hole opener,its the main cutting structure of a bit. Suitable for HDD Reamers Advantage Advancing teeth layout. Vancuum oil filling Patented oil pressure balancing. High temperature sealing ring. Great bearing capacity. FAQ: 1.Q:What kind of packing do you have? A: Wooden case free of fumigation;cartons;packing can be customized. There is an ample supply of a variety of milled and TCI tricone bits ,providing customers with the most suitable products at any time.